Take your classic Mustang’s suspension to the next level with QA1’s Pro Coil System. Engineered specifically for 1964–1966 Mustangs, this double adjustable coilover kit gives you complete control over ride quality, stance, and performance. Featuring 10” coil springs with a 350 lb./in. spring rate, it’s an ideal setup for drivers who want a balance of comfort and handling with full adjustability for any driving situation. TOTAL SUSPENSION CONTROL QA1 double adjustable coilovers allow independent adjustment of rebound and compression. With 18 clicks for each, you can precisely tune how your Mustang reacts to bumps, corners, and acceleration. Whether you’re cruising, carving corners, or dialing in track settings, this system gives you unmatched control. RIDE HEIGHT FLEXIBILITY Fine-tune your Mustang’s stance with adjustable ride height from factory stock height down to 2” lower. Achieve the aggressive look you want while maintaining proper suspension geometry for predictable handling. EASY BOLT-IN INSTALLATION QA1 designed this system as a direct bolt-in replacement. No welding, no cutting - just straightforward installation with standard tools. Perfect for DIY enthusiasts and builders who want modern performance without fabrication.
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
1964-1966	Ford	Mustang	Base
1965-1966	Ford	Mustang	Shelby GT-350
1966	Ford	Mustang	Shelby GT-350H